A viscoelastic-viscoplastic model with non associative plasticity for the modelling of bonded joints at high strain rates

被引：18

作者：

Dufour, Ludovic ^{[1
]}

Bourel, Benjamin ^{[1
]}

Lauro, Franck ^{[1
]}

Haugou, Gregory ^{[1
]}

Leconte, Nicolas ^{[1
]}

机构：

[1] Univ Valenciennes & Hainaut Cambresis, LAMIH, UMR CNRS 8201, F-59313 Valenciennes, France

来源：

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2016年 / 70卷

关键词：

Adhesive bonding; Viscoplasticity; Bulk adhesive; Arcan test; DAMAGE MODEL; SOLID POLYMERS; YIELD BEHAVIOR; LAP JOINTS; ADHESIVE; ELEMENT; IDENTIFICATION; PARAMETERS; TENSION; DESIGN;

D O I：

10.1016/j.ijadhadh.2016.07.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The purpose of this work is to present a constitutive model able to represent the behaviour of rubber toughened adhesive joints under dynamic loading. A fully coupled viscoelastic-viscoplastic damage model at finite strains developed for mineral filled semi-crystalline polymer is identified for an epoxy adhesive. The parameters of the model are identified from experimental tests undertaken on bulk material in compression and tension at several loading speeds. In order to validate the accuracy of the model to represent bonded joints, a specific dynamic Arcan device is used. Experimental tests on this apparatus are carried out for tensile, shear and mixed tensile/shear loadings at 1 mm/s, 10 mm/s and 100 mm/s. A very good agreement between experimental and numerical results is obtained for a large strain rate range and for various stress states. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：304 / 314

页数：11

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